This circuit can generate signals of different frequencies, switched by a DC voltage. The frequencies are determined by the crystals. The circuit is from a 90s American documentation.
This circuit was found in a 1978 publication. Equivalent operational amplifiers can be used. The...
This low current circuit is suitable for powering the previous circuit and other strobe lamp...
Found in an Electronic Design this circuit controls a headlamp by triggering a time determined by the...